35 year old woman in our stake was running a marathon in Moab. She collapsed and died. Autopsy showed a heart attack. No prior symptoms.
Hank Gathers? Collapsed on the basketball court and died of a cardiomyopathy.
There are many more. Harward may be very lucky that he is still alive.
WikipediaIt remains a difficult medical challenge to prevent the sudden cardiac death of athletes, typically defined as natural, unexpected death from cardiac arrest within one hour of the onset of collapse symptoms, excluding additional time on mechanical life support. (Wider definitions of sudden death are...
https://en.wikipedia.org/wiki/Sudden_cardiac_death_of_athletes